It is debatable whether French fries originated in France or Belgium. Belgian history indicates that French fries were created in the 1700s in the Wallonie region, where people consumed fried fish. When the river froze over during cold weather, the Belgian people ate potatoes fried in fat.
On the other hand, French history suggests that the fried potato was invented by Parisian chefs who worked under the bridges along the Seine River. The food was previously known as Frites Pont-Neuf, named for a bridge in Paris.
French fries are said to have gotten their name in 1856, when they were referred to as "French-fried potatoes" by E. Warren. The phrase was mentioned for the first time in Warren's written work, "Cookery for Maids of All Work."